Sectional guide roll



March 17, 1936. B. BANNlsTE-R v .2,034,127

sEcT-IoNAL GUIDE ROLL y Filed March 14, 1933 I IIV IIV Q I y [Weie/fr:

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Patented Mer. b17', 193e UNITED )STATES PATENT OFFICE ssc'rroNAL GUIDE non. Bryant Bannister, Modnt'ubanon, re. Application March 14, 1933. Serial No. 660,719

4 claims. (ci. sos-ssi'.

This invention relates to improvements insee-` tional guide rolls for rolling. mills, and particularly to that type of mill used inthe manufacture Y of seamless pipes and tubes. These guide roils are power-actua'iand ro te labout axes substantially transverse to the axis o! the mill and have a peripheral speed in the direction of and greater than the longitudinal speed of a workpiece progressing through the mill.` v Guide rolls of this type are generally extremely efficient in operation, once installed, but frequently require replacement due to a desired change in size, wear, and to otherdiiliculties encountered in practice.

with present practice, it is necessary to suspend v the operation of the mill for a considerable length of time due to the fact that the lshafts and bearings associated with these rolls'must be entirely removed. In addition, a great deal of labor is necessary to carry out the rather complicated operation, largely because of the weight of the .various parts to be handled.

One object of the present invention isto pro- 2.5 vide e nove1 guide rou-for rolling mins, which is particularly easy to replace, and one which is comparatively cheap to manufacture. s

Another object is to provide a novel and eilicient mounting for guide rolls. /4 so 'These and further objects will be apparent after referring to the drawing, in which:

guide roll structure as associated with the outlet end of a conventional rolling mill.

' 3 5 Figures'2 and 3 are detail views of the apparatus of Figure l.

Figure 4 is a modified form of the invention. Referring more particularly to the drawing,-

" is desired to operate upon a work-piece l.

' The work rolls 2 are preferably mounted on axesparranged in dierent horizontal planes and are canted with respect'to one another,

45 .pair of guide rolls rip eries 5a, are disposed in the outlet end-of the work rolls 2 and are arranged on axes substantially transverse todthe axis of a work-piece 4 progressing through the-mill. Oneof these 5 guide ions s is usually positioned above the workpiece and the other 'below the same, and are rotated in the direction of and at a greater peripheral speed than the longitudinal speed of the work-piece.

In order to replace a guide roll in accordance Figure 1 is a sectional elevation of my improved eine embodiments of my 55 The guide rolls 5 of my invention` comprise an annular ring provided with abutmentsv at 6, and" holes 'l to permit of their being mounted on asuitable driving means. A driving shaft 9 and idler shaft 9are provided with collars III at their alined .and adjacent ends, and rotate within suit- 6 able bearings disposed within bearing housings II, which are connected to bearing housing supports I2 by bolts I9 and nuts Il.

eferring to Figure 3, the shafts yIi and 9 and bearing housings Il are kept in exact alinement 19 Y with the supports l2 throughvthe medium of a key I Ib disposed in keyways II .in both bearing housing and support.`

The guide roll i is mounted between the colllars I0 and secured thereto by bolts I5 and nuts 15' I9, the abutments 9- of the guideroll contacting with the edges of the collars I9.

In order to permit of the quick and easy re-k moval oi' the guide roll, the bearing' housing of' the idler shaft 9 is provided with slots Il" in 20 lieu of the bolt holes of the bearing for the driving shaft 9. Similarly, the bearing housing support I2 for the idlershaft 9 is provided with,

slots I2 which are in practice somewhat smaller than those indicated at iiii in its associated bear- 26 ing housing.

Referring to Figure 4, I have disclosed a modication, in which the guide roll 5 is provided with abutments 9 and a comparatively short boss portion 6*. In this form of the invention the 30 boss 9* is clamped between the collars IIl which have been recessed as at I9a to. provide a satisfactory seat.

While I have shown and described several speinvention it win be understood that I do not, wish to be limited exactly thereto, 'since various modifications may b -be made without departing from the scope of the numeral 2 indicates a pair of power-actuated v 4 work rolls between which, and a mandrel 3, it

my invention, as defined in the following claims.

I claim: l l. In a guide roll construction for. seamless tube mills and the like, the combinationof a driven J a collar on -said Idriven shaft. an idler, shaft in almement-With Said driven-Shaft, rigid means for preventing misalinement of said idler 45.

driven shaft, a guide roll having' its periphery 50 transversely contoured to conform to the periphery-of a work-piece to be carried thereby, and

. x'neans for rigidlyxnaintaining said guide roll bevtween the collars on said driven and idler shafts.

2. In a guide roll construction for seamless tube v by, and means for l'alinement with said driven 4Ward and away from said 2 mills'and the like, the combination of a driven shaft. a collar on said driven shaft, a in shaft, rigid means for preventing misalinement of said bearing, said bearing being'movable toward mid away from said driven shaft, means for holding said bearing against movement, an idler shaft in said bearing, a collar on the end f said idler shaft which is adjacent said driven periphery transversely `contoured to conform to the periphery of a work-piece to be guided thererigidly maintaining said guide roll setweeii the collars on` said driven and idler 3'. Ina guide roll construction for seamless tube combination of a driven shaft, an annularly recessed collar on said driven shaft, a bearing in alinement withasaid `iven shaftfrigid means for preventing. misalinenient of saidbearing, said bearing being movable todriven shaft, means for holding said bearing against movement, an idler shaft in said bearing, an annularly `recessed co1- shaft, a guide roll having itslar on the end of said idler shaft which is adjacent said driven shaft, a guide roll having its periphery transversely contoured to conform to the periphery of a work-piece Yto be carried thereby, said guide roll being annularly recessed on both of its sides to seat in the annular recesses in the collars on said driven and for rigidly maintaining said guide roll between said collars, said last named means being spaced from those portions of the collars which contact said guide roll.

4. In-a cross-rolling mill, the combination with va pair of helically acting. cross rolls, of a guide disc arranged to act between said rolls, two axially alined shaftsprovided with opposed anges at theiradjaeent ends, means for removably at- `taehing said disc to said ilanges between their adjacent faces, and bearings each rotatably suppou-ting one of said shafts, one of said bearingsl being mounted for axial movement with relation to the other to separate said shafts for the removal of` 'said disc fro A between them.

idler shafts, and means 

